Originally Posted by
JimmyHAD
Birnando, I don't mean heat treatment in the sense that it is faulty and the blade is no good. I mean that some blades may be harder steel, more abrasion resistant, than others. For example, IME, the dubl duck line of razors are easily brought to a superb shaving edge. The dubl duck Wonderedge is not easy at all. I only have one but it took a lot of work to dial in and I attribute that to the cyro hardening they used on that one model. I may be mistaken but I believe that treatment would make the steel more abrasion resistent and IMHO that is what makes some razors more difficult to hone.